> Building a lot more nuclear power plants is the key thing that doesn't really seem to be happening right now

I mean, this is the clear and obvious one. Nuclear theoretically should be much, much cheaper than it is if it were not for the regulatory costs thrust upon it.

It also harrows out people who are legitimately concerned from "moralist concern junkies". You'd think climate change being a global existential crisis would make people open to nuclear energy or more drastic measures like geo-engineering, but the frequency with which people refuse to compromise undercuts the their legitimacy.